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Electrical Machines lab –II Manual
Electrical Machines lab –II Manual

FEATURES DESCRIPTION D
FEATURES DESCRIPTION D

Section 3 Chapter 1
Section 3 Chapter 1

... We wish to be able to talk about, solve for, and indicate clearly the directions for both current and voltage. For current, we wish to be clear about which direction positive charges are moving. For voltage, we wish to be clear about which direction would result in a positive charge losing energy. T ...
Battery charge I.C. - STMicroelectronics
Battery charge I.C. - STMicroelectronics

... the switch is ON, being the input states held by an internal pull down resistor. This is used when the ...
Cree XLamp LED Electrical Overstress Application Note
Cree XLamp LED Electrical Overstress Application Note

... either directly through high current or indirectly through high voltage. These events are transient, meaning they happen for a short period of time – typically less than one second. They are sometimes referred to as surges or spikes, such as a “current spike” or “voltage spike.” An over-current even ...
Motoman XRC Setup Guide
Motoman XRC Setup Guide

... anyone working near the robot must become familiar with the operation of this equipment. All personnel involved with the operation of the equipment must understand potential dangers of operation. Programming tips are as follows: Any modifications to PART 1 of the XRC controller PLC can cause severe ...
FOD2712A Optically Isolated Error Amplifier FOD2712A — Opticall
FOD2712A Optically Isolated Error Amplifier FOD2712A — Opticall

PWM Speed Controller
PWM Speed Controller

Design Review: Isolated 50 Watt Flyback Converter Using the
Design Review: Isolated 50 Watt Flyback Converter Using the

... 160V. According to (11), the average supply current of the controller, IVDD, needs to increase by 4.9mA to switch the gate at the selected operating frequency. ...
Fault Locating - The BEST Group
Fault Locating - The BEST Group

... •  Impedance-based methods are widely used because of their simplicity but certain assumptions affect the accuracy of fault location estimates. •  To minimize the errors associated with impedance-based methods, the fault current profile approach is an alternative method for locating faults in a dist ...
Design_Considerations_for_High_Step
Design_Considerations_for_High_Step

... For the synchronizing fet (low side Mosfet) the major contributor is the conduction losses especially for low output voltages. As the MOSFET conducts current for the major part of duty cycle. Switching losses in the low side MOSFET are practically negligible, since Q2 switches on and off with a diod ...
Five Level Flying-Capacitor Multilevel Converter Using Dynamic
Five Level Flying-Capacitor Multilevel Converter Using Dynamic

... mitigation are network based which includes, Ferroresonant transformers, electronic tap changers and motor generator sets. The response of such devices is very sluggish. The need is for devices with sub cycle response. ...
MAX16839 Evaluation Kit Evaluates: General Description Features
MAX16839 Evaluation Kit Evaluates: General Description Features

... sense resistors (R1 or R2 for channel 1, R3 or R4 for channel 2, and R5 or R6 for channel 3). Additionally, each channel can be reconfigured to provide down to 50mA of current. The EV kit operates from a 5V to 40V rated power supply providing up to 300mA and the EV kit can withstand a 45V load-dump ...
OP200
OP200

... Zener zap trimming is used to achieve the extremely low input offset voltage of the OP200 and eliminates the need for offset pulling. ...
CIRCUITS LABORATORY Experiment 8 DC Power Supplies
CIRCUITS LABORATORY Experiment 8 DC Power Supplies

MAX745 Switch-Mode Lithium-Ion Battery-Charger General Description
MAX745 Switch-Mode Lithium-Ion Battery-Charger General Description

CMS2005 - Sensitec GmbH
CMS2005 - Sensitec GmbH

... September 3rd 2012 ...
MAX8500–MAX8504 PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets General Description
MAX8500–MAX8504 PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets General Description

... 5.5V and the guaranteed converter output current is 600mA. The 1MHz PWM switching frequency allows for small external components. The MAX8500–MAX8503 are dynamically controlled to provide varying output voltages from 0.4V to VBATT. The LDO regulation point is slightly lower than the PWM converter su ...
So far we have talked about production primarily of gamma rays
So far we have talked about production primarily of gamma rays

... electrons. Other devices for accelerating electrons such as the microtron or the van de Graaff generator have not been used very much for medical applications. Finally, the last thing you need is a target. You have to stop the electrons or slow the electrons down in some way. Slowing the electrons d ...
FSGM0565RB Green-Mode Fairchild Power Switch (FPS™)  FSGM
FSGM0565RB Green-Mode Fairchild Power Switch (FPS™) FSGM

c-14-dbme-1st-year
c-14-dbme-1st-year

... State and explain Kirchhoff’s laws. Solve problems on D.C. Networks using Kirchhoff’s laws. Apply Kirchhoff’s laws to Wheatstone’s bridge Network. Explain Star and Delta configurations of resistances. Give transformation formulae from Star to Delta & Delta to Star (no derivation). Solve simple probl ...
EE 1272327
EE 1272327

... results in increasing attention on Z-source inverter, Fig.1. Circuit diagram of a 3-phase Z-source inverter especially for the application where the input DC source has a wide voltage range, such as fuel cell An additional parameter is introduced in Zmotor drive system and the photovoltaic (PV) grid ...
TPS63000-Q1 数据资料 dataSheet 下载
TPS63000-Q1 数据资料 dataSheet 下载

... input and output voltage feed forward. Changes of input and output voltage are monitored and immediately can change the duty cycle in the modulator to achieve a fast response to those errors. The voltage error amplifier gets its feedback input from the FB pin, and a resistive voltage divider must be ...
AP7333-12SRG-7 Datasheet
AP7333-12SRG-7 Datasheet

... factor of only 12.5 percent, enabling power savings by putting much of the baseband circuitry into standby mode in between transmit cycles. In baseband circuits, the load often transitions virtually instantaneously from 100µA to 100mA. To meet this load requirement, the LDO must react very quickly w ...
Transformer Terminology And FAQs
Transformer Terminology And FAQs

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Mercury-arc valve



A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.
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